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X-ray imaging test

Magnetic resonance imaging, X ray and dual X ray absorptiometry techniques for assessment and monitoring of knee osteoarthritis

Magnetic resonance imaging, X ray and dual X ray absorptiometry techniques for assessment and monitoring of knee osteoarthritis

... that proMMP-3 levels at the onset of the disease were predictive of cartilage loss at the end of the second year of the follow-up period. Moreover, proMMP-3 predicted joint damage progression independently from other ...

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Challenges associated with x ray imaging of stretcher bound patients

Challenges associated with x ray imaging of stretcher bound patients

... Leeds Test Object which is a test phantom designed for routine quality control to quantify the degree of threshold contrast in each image using one of themselves as authors to observer and assess ...Leeds ...

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3D Cardiac microvessels embolization imaging based on X-ray phase contrast imaging

3D Cardiac microvessels embolization imaging based on X-ray phase contrast imaging

... The two rats were established as models of acute myocardial infarction. 24 h after in- farction, we started the imaging test. The phase contrast image of the heart is shown in Figure 2. The vessels in heart ...

9

Imaging features in post-mortem x-ray dark-field chest radiographs and correlation with conventional x-ray and CT

Imaging features in post-mortem x-ray dark-field chest radiographs and correlation with conventional x-ray and CT

... Statistical analysis was performed using GraphPad Prism 7 for Mac OS X (Version 7.0d, GraphPad Soft- ware Inc., USA) and R version 3.4.4 (R Foundation for Statistical Computing, Vienna, Austria). For or- dinal ...

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Global Localization and Orientation of the Cervical Spine in X-ray Imaging

Global Localization and Orientation of the Cervical Spine in X-ray Imaging

... In this work, a coarse to fine cervical spine localization algorithm has been eval- uated on a set of 90 emergency room X-ray images. The algorithm is based on a random forest patch classifier which ...

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An investigation of the imaging performance of new digital x-ray detectors

An investigation of the imaging performance of new digital x-ray detectors

... T he spatial resolution lim it o f an im aging system is defined as the highest spatial frequency o f a unit-contrast test object that can be detected visually on a radiological im age (Hay et al 1985). The lim ...

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Context sensitive cardiac x-ray imaging: a machine vision approach to x-ray dose control

Context sensitive cardiac x-ray imaging: a machine vision approach to x-ray dose control

... Test images were acquired using an anthropomorphic chest phantom (Radiology Support De- vices, Alderson Phantoms, Long Beach, USA) containing a left coronary artery (LCA) filled with contrast agent. The phantom ...

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Monte Carlo modeling of direct x-ray imaging systems

Monte Carlo modeling of direct x-ray imaging systems

... in x-ray images. X-ray images utilized in the exercise were produced with the model described in this ...evaluating x-ray imaging systems designed for mammography ...

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Energy-resolved X-ray detectors: the future of diagnostic imaging

Energy-resolved X-ray detectors: the future of diagnostic imaging

... recording. X-ray photons convert to something else (blackened grains in film, metastable states in image plate, visible photons in scintil- lators, electron-ion pairs in a-Se) losing the information of ...

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Effects of Tube Voltage on Phase Contrast Imaging for Different Microfocus X Ray Tubes

Effects of Tube Voltage on Phase Contrast Imaging for Different Microfocus X Ray Tubes

... Conventional x-ray imaging is based on the attenuation properties of an object, however, for some weak absorp- tion objects, such as biological tissue, polymers, and fi- ber composites, the use of ...

5

DTPAA-Gd Functionalized Ultrasmall Au15NCs Nanohybrids for Multimodal Imaging

<p>DTPAA-Gd Functionalized Ultrasmall Au<sub>15</sub>NCs Nanohybrids for Multimodal Imaging</p>

... and X-ray attenuation properties. It is worth noting that imaging com- ponents promote each other, which addresses the limitations of interference between imaging elements of conventional ...

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Ludwig, Wolfgang
  

(2001):


	Development and Applications of Synchrotron Radiation Microtomography.


Dissertation, LMU München: Fakultät für Physik

Ludwig, Wolfgang (2001): Development and Applications of Synchrotron Radiation Microtomography. Dissertation, LMU München: Fakultät für Physik

... The technique is based on a monochromatic high energy X-ray beam (50 - 80 keV) and a 2-dimensional detector. The principle is sketched in Fig. 4.14. The incoming beam is focused by a bent Laue monochromator ...

158

X-ray radiation and the risk of multiple sclerosis: Do the site and dose of exposure matter?

X-ray radiation and the risk of multiple sclerosis: Do the site and dose of exposure matter?

... The study was performed at Firoozgar University Hospital (affiliated to Iran Uni- versity of Medical Sciences) in Tehran, Iran, during 2007-2008. This analytical case-control study was conducted on 150 individuals ...

8

Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators : state of the art and future development

Phase-contrast imaging using radiation sources based on laser-plasma wakefield accelerators : state of the art and future development

... This large accelerating gradient makes the LWFA an ideal alternative to conventional acceleration because it allows miniaturization of the accelerators by a factor greater than 1000. These compact “table-top” ...

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Using willingness-to-pay to establish patient preferences for cancer testing in primary care

Using willingness-to-pay to establish patient preferences for cancer testing in primary care

... Following a ‘yes’ response to the question about test- ing, participants proceeded automatically to the third section of the survey – the willingness-to-pay exercise. The design of this part of the survey was ...

13

Characteristics of the CsI:Tl Scintillator Crystal for X Ray Imaging Applications

Characteristics of the CsI:Tl Scintillator Crystal for X Ray Imaging Applications

... of X-rays in many fields of hu- man activity has stimulated the research in scintillation ...scientific imaging together with the develop- ment and exploitation of powerful X-ray sources, such ...

13

Ultrafast electron optical visible / X ray sensitivity streak and framing cameras

Ultrafast electron optical visible / X ray sensitivity streak and framing cameras

... with x-ray illumination of gold photocathodes, (iii) contamination of the photocathode due to processing inadequacies and (iv) longer x-ray pulse (~100ps) than the UV test pulses ...

225

Imaging in 3D under pressure: a decade of high-pressure X-ray microtomography development at GSECARS

Imaging in 3D under pressure: a decade of high-pressure X-ray microtomography development at GSECARS

... Imaging-based volume/density measurements of non- crystalline materials are intrinsically less accurate, with typical errors on the order of 2 %. This is more than ten times the uncertainty in volume/density ...

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A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging

A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging

... strong X-ray backscatter ...reference X-ray scatter ...background X-ray emission associated with electrons interacting with the vacuum chamber ...

7

Aspects of phase retrieval in x ray crystallography

Aspects of phase retrieval in x ray crystallography

... As mentioned in x 1, the solution to the one-dimensional (non- crystalline) phase problem is highly non-unique. In x4 we analyse the two-dimensional crystal phase problem using a decomposition into one-dimensional ...

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